Patent US3966531A successfully refreshed from Google Patents.
US3966531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing silanes possessing imide groups
Assignee: Rhone Poulenc Industries SA
•
Filing: 1975-02-03
•
Granted: 1976-06-29
•
Expires: 1995-02-03
Abstract
Abstract Compositions are prepared by reacting one mol of a bis-imide of the formula: ##EQU1## with at least one mol of an amino-silane of the formula: ##EQU2## IN WHICH R represents a divalent hydrocarbon radical with 2 to 20 carbon atoms which is free from unsaturated bonds other than aromatic bonds, a divalent mono- or bis-heterocyclic radical with 2 to 10 carbon atoms, or a divalent organic radical with 4 to 20 carbon atoms which consists of more than one said divalent hydrocarbon radical bonded to one another via --O--, --S--, --CO-- or --SO 2 --, R' represents a divalent hydrocarbon radical with 1 to 20 carbon atoms or a divalent radical with 4 to 20 carbon atoms which consists of more than one hydrocarbon radical bonded to one another via --NH-- or --O--, Z represents a hydrolysable group, R" represents a monovalent radical with 1 to 6 carbon atoms and x is 0 or 1. These compositions are particularly useful, especially as solutions, as undercoats for adhering organopolysiloxane compositions to a variety of substrates.
Inventors
- 👤 Michel Bargain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:21
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/14; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C09D4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
Process for the preparation of a composition based on imide-group containing organosilicon compound which comprises reacting one mol of a bis-imide of the formula: ##EQU15## with at least one mole of an amino-silane of the formula: ##EQU16## in which R represents a divalent hydrocarbon radical with 2 to 20 carbon atoms which is free from unsaturated bonds other than aromatic bonds, a divalent mono- or bis-heterocyclic radical with 2 to 10 carbon atoms, or a divalent organic radical with 4 to 20 carbon atoms which consists of more than one said divalent hydrocarbon radical bonded to one another via --O--, --S--, --CO-- or --SO 2 --, R' represents a divalent hydrocarbon radical with 1 to 20 carbon atoms or a divalent radical with 4 to 20 carbon atoms which consists of more than one hydrocarbon radical bonded to one another via --NH-- or --O--, Z represents a hydrolysable group, R" represents a monovalent radical with 1 to 6 carbon atoms and x is 0 or 1.
Claim 2
Dependent Claim
166 words
Process for the preparation of a composition based on imide-group containing organosilicon compound which comprises reacting one mol of a bis-imide of the formula: ##EQU15## with at least one mole of an amino-silane of the formula: ##EQU16## in which R represents a divalent hydrocarbon radical with 2 to 20 carbon atoms which is free from unsaturated bonds other than aromatic bonds, a divalent mono- or bis-heterocyclic radical with 2 to 10 carbon atoms, or a divalent organic radical with 4 to 20 carbon atoms which consists of more than one said divalent hydrocarbon radical bonded to one another via --O--, --S--, --CO-- or --SO 2 --, R' represents a divalent hydrocarbon radical with 1 to 20 carbon atoms or a divalent radical with 4 to 20 carbon atoms which consists of more than one hydrocarbon radical bonded to one another via --NH-- or --O--, Z represents a hydrolysable group, R" represents a monovalent radical with 1 to 6 carbon atoms and x is 0 or 1.
Claim 3
Dependent Claim
16 words
Process according to claim 1, in which the molar ratio ##EQU17## is from 1 to 2.
Claim 4
Dependent Claim
34 words
Process according to claim 1, in which the bis-imide contains up to 20 mol % of a monoimide which is a maleimide, N-alkyl- or aryl-maleimide, or a maleimide possessing an acetoxy or acetamido group.
Claim 5
Dependent Claim
28 words
Process according to claim 1, in which the reaction is carried out at a temperature of 0° to 100°C in at least a partial solvent for the bis-imide.
Claim 6
Dependent Claim
40 words
A composition based on imide group-containing organosilicon compound which comprises a compound of the formula: ##EQU18## in which R, R', R"Z and x are as defined in claim 1 and Σ represents a radical of the formula: ##EQU19## or ##EQU20##
Claim 7
Dependent Claim
13 words
A composition according to claim 5, which contains a solvent for the compound.
Claim 8
Dependent Claim
11 words
A composition according to claim 5, which contains a curing accelerator.
Claim 9
Dependent Claim
66 words
A composition according to claim 5, in which Z represents a group of the formula: --OG, ##EQU21## --NHG, --N(G) 2 , ##EQU22## --ON=CHG, --ON=C(G) 2 , --ON(G) 2 in which each of the G radicals, which may be the same or different, represents a monovalent hydrocarbon radical containing at most 15 carbon atoms or two G radicals together form a divalent radical optionally containing a heteroatom.
Claim 10
Dependent Claim
54 words
A composition according to claim 8, in which G represents a methyl, ethyl, propyl, hexyl, cyclohexenyl, cyclohexyl, phenyl, benzyl or tolyl radical, or two G radicals form a radical of formula: --(CH 2 ) n or --(CH 2 ) n --O(CH 2 ) n in which n is an integer from 1 to 5.
Claim 11
Dependent Claim
53 words
In a process for adhering an organopolysiloxane composition which can be vulcanised at ambient temperature in the presence of water in the liquid or vapour state to a substrate which comprises placing an adhesive between the composition and the substrate, the improvement wherein the adhesive is a composition as defined in claim 5.
Claim 12
Dependent Claim
22 words
A process according to claim 10, in which the substrate is wood, concrete, a metal, polyethylene, glass or a glass fibre material.
References Cited (Backward Citations)
US2721873A
Cited
US2818405A
Cited
US3185704A
Cited
US3379607A
Cited
US3562223A
Cited
US3499870A
Cited
US3717615A
Cited
US3759779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |